Mouse 1: selects text (and moves the cursor)
Mouse 2: selects text (and executes it)
Mouse 3: selects text (and plumbs/searches for it)
Double click: selects word
Double click at the beginning of line: selects line
^U = Delete from cursor to start of line
^W = Delete word before the cursor
^H = Delete character before the cursor
^A = Move cursor to start of the line
^E = Move cursor to end of the line
Esc = Select most recently typed text
Select + Esc = Deletes selection
Left, Right = Move the cursor left or right one character
Up, Down = Move the view (but not the cursor) a quarter of a screen up or down the document
Page Up/Page Down = Move the view (but not the cursor) up or down a page
Home, End = Move the view (but not the cursor) to the beginning or the end of the document
1 + 2 = Cut
1 + 3 = Paste
1 + 2,3 = Cut, followed by Paste (Snarf)
1 + 3,2 = Paste, followed by Cut (undoes the Paste)
2 + 3 = Cancel execution/plumbing/searching
2 + 1 = Execute with selected text as argument
No.